# Spot and area lights inconsistent

Im having problems with area light and spotlight. When adjusting parameters the change is not consistent and sometimes the light grows tstronger and then dissapears and then reappears very strong, when increasong the strength.

Also i have a spotlight that only affects the 3d meshes that is the environemnt but not the ground, which is textured plane.

Wehn playing the game some area lights switch on or off depending on what angle and distance from it i am at the moment. Are the lights supposed to be able to be used dynamically ?

Im using the free version of Unity. Could this be affecting?

It renders before the lights marked as RenderMode: important (or RenderMode:auto and promoted as important by the engine itself). This kind of lights are rendered per pixel. The maximum number of those lights is set in Quality Settings-> Pixel Light Count (the engine allows up to 4 per pixel light).